Luck is a big factor in most big deer harvests, but this situation is not as ironic as it may seem. First smoke is not something that necessarily something that alerts deer. Smoke, in general, is ubiquitous in many areas to the point where some hunters smoke their hunting clothes to cover human scent. While tobacco smoke may be a little different, unless deer somehow associate it with humans or other predators, it may have no effect. As for taking a leak from the stand, again, that may not be a scent factor either. I know a guy who did a study of mock scrapes years ago using different types of urine. While there were less visits to scrapes with some predator urine, taking a leak in scrapes showed similar visit numbers and use by deer as deer urine.
Now, I would not recommend either of these things, I would presume associated movement would be the biggest negative factor in most cases.
Thanks,
Jack